package com.design.singleton;


/**
 * 懒汉式
 * Created by CrazyShaQiuShi on 2017/1/22.
 */
public class Singleton2 {

    private  static  Singleton2 instance;
    private  Singleton2(){}
    public static  synchronized  Singleton2 getInstance(){
        if(instance==null){
            instance=new Singleton2();
        }
        return instance;
    }
}
